Navigation Links
Catalyst that makes hydrogen gas breaks speed record
Date:8/12/2011

chemicals.

"We want to store energy as densely as possible. Chemical bonds can store a huge amount of energy in a small amount of physical space," said Bullock, director of the Center for Molecular Electrocatalysis at PNNL, one of DOE's Energy Frontier Research Centers. The team also included visiting researcher Monte Helm from Fort Lewis College in Durango, Colo.

Biology stores energy densely all the time. Plants use photosynthesis to store the sun's energy in chemical bonds, which people use when they eat food. And a common microbe stores energy in the bonds of hydrogen gas with the help of a protein called a hydrogenase.

Because the hydrogenases found in nature don't last as long as ones that are built out of tougher chemicals (think paper versus plastic), the researchers wanted to pull out the active portion of the biological hydrogenase and redesign it with a stable chemical backbone.

Two Plus Two Equals One

In this study, the researchers looked at only one small part of splitting water into hydrogen gas, like fast-forwarding to the end of a movie. Of the many steps, there's a part at the end when the catalyst has a hold of two hydrogen atoms that it has stolen from water and snaps the two together.

The catalyst does this by completely dismantling some hydrogen atoms from a source such as water and moving the pieces around. Due to the simplicity of hydrogen atoms, those pieces are positively charged protons and negatively charged electrons. The catalyst arranges those pieces into just the right position so they can be put together correctly. "Two protons plus two electrons equals one molecule of hydrogen gas," says Bullock.

In real life, the protons would come from water, but since the team only examined a portion of the reaction, the researchers used water stand-ins such as acids to test their catalyst.

"We looked at the hydrogenase and asked what is the important part of this?" said Bu
'/>"/>

Contact: Mary Beckman
mary.beckman@pnnl.gov
509-375-3688
DOE/Pacific Northwest National Laboratory
Source:Eurekalert  

Page: 1 2 3 4

Related biology technology :

1. Catalyst Pharmaceutical Partners Reports Second Quarter 2008 Financial Results
2. NIST and partners identify tiny gold clusters as top-notch catalysts
3. Catalyst Pharmaceutical Partners, Inc. Announces a $4.5 Million Registered Direct Common Stock Offering
4. Catalyst Pharmaceutical Partners to Present at the Rodman & Renshaw 10th Annual Global Investment Conference
5. PointCross Releases Catalyst for Building Business-Ready SharePoint Solutions in 1/10th the Time
6. Eurotech Catalyst Module Awarded to Allen Organ Company From Arrow Electronics
7. Coalition for the Advancement of Medical Research Releases New White Paper, Catalyst for Cures: Embryonic Stem Cell Research
8. New catalyst paves the path for ethanol-powered fuel cells
9. Brown chemists create more efficient palladium fuel cell catalysts
10. Catalyst Biosciences Expands Scientific Advisory Board With Leading Experts in Protease Therapeutic Discovery and Development
11. Researchers create catalysts for use in hydrogen storage materials
Post Your Comments:
*Name:
*Comment:
*Email:
Related Image:
Catalyst that makes hydrogen gas breaks speed record
(Date:7/31/2014)... July 31, 2014 Boston’s Adult Stem ... flush with innovative adult stem cell biotechnologies. Currently ... and has three additional patent applications currently under examination ... patented inventions address two of the most vexing problems ... Adult stem cells are difficult to identify; and ...
(Date:7/30/2014)... July 30, 2014 Regulus Therapeutics Inc ... leading the discovery and development of innovative medicines targeting ... and highlights for the quarter ended June 30, 2014 ... markets close. Regulus will host a ... at 5:00 pm Eastern Daylight Time to discuss its ...
(Date:7/30/2014)... 30, 2014 W. R. Grace ... of the REVELERIS® Prep purification system , ... chromatographers, and other researchers to perform both flash ... unit. , With the REVELERIS® Prep purification system, ... chromatography modes with a simple touch of the ...
(Date:7/30/2014)... A study presented at the 2014 ... of CSL Behring,s C1 Inhibitor (C1-INH) concentrate in ... sensitized patients. C1-INH is a human protein and ... The study shows that post-transplant treatment with ... of complement components 3 and 4, suggesting that ...
Breaking Biology Technology:The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 2The Adult Stem Cell Technology Center, LLC Launches A Marketing Campaign To License Adult Stem Cell Biotechnologies 3Regulus Announces Timing for Second Quarter 2014 Financial Results Webcast and Conference Call 2Regulus Announces Timing for Second Quarter 2014 Financial Results Webcast and Conference Call 3Grace Launches New REVELERIS® Prep Purification System 2Study Suggests C1-INH May Aid in Prevention of Antibody-Mediated Rejection Following Kidney Transplant 2Study Suggests C1-INH May Aid in Prevention of Antibody-Mediated Rejection Following Kidney Transplant 3
... long-term promise, non-invasive techniques can also provide effective ... in the brain for paralyzed patients with significantly ... applications for healthy users. However, two issues hamper ... on non-invasive recording techniques, such as electroencephalography (EEG). ...
... IRVINE, Calif., Aug. 12 ChromaDex,Corporation, (OTC Bulletin ... contract research, today announced financial results for the,second ... in accordance with,U.S. Generally Accepted Accounting Principles (GAAP), ... of $0.03 per share for the,three months ended ...
... ST. LOUIS, Aug. 12 At the Board ... quarterly cash dividend of,$.13 per share. The dividend ... record on September 2, 2008., About Sigma-Aldrich: ... company. Our biochemical and organic chemical products and ...
Cached Biology Technology:ChromaDex Announces Second Quarter 2008 Financial Results 2ChromaDex Announces Second Quarter 2008 Financial Results 3
(Date:7/30/2014)... black truffle uses reversible epigenetic processes to regulate its ... ,methylome, - a picture of the genome regulation taking ... access journal Genome Biology and illustrates how ... and ,jumping genes,. The authors say this may shed ... controlled. , Black truffles (Tuber melanosporum), also known as ...
(Date:7/30/2014)... protected and tended her eggs until they hatched 4.5 ... 2014 in the open-access journal PLOS ONE ... and colleagues. , Octopuses typically have a single reproductive ... take care of their fertilized eggs until they hatch. ... to 3 months, but little is known about the ...
(Date:7/30/2014)... effects of climate change on the world,s animal ... factors, according to a new paper by a ... of Queensland, and other organizations. The authors claim ... the point when it comes to climate change. ... scientists focus on the "direct" threats of changing ...
Breaking Biology News(10 mins):How black truffles deal with the jumpers in their genome 2Deep-sea octopus has longest-known egg-brooding period 2Conservation scientists asking wrong questions on climate change impacts on wildlife 2
... and spend enormous resources on the conservation of endangered ... One big problem is international legislation and the need ... networks. Zoo resources can be spent much more effectively, ... animal collections across the world,s zoos. Many zoos ...
... and, in most cases, they have evolved a "circadian clock". ... has been shown to have important metabolic consequences for the ... on health; for example lack of sleep is linked with ... the ability to control body weight. Scientists from the ...
... Cell Research (ISSCR) has announced the following 2014 award ... Annual Meeting in Vancouver, taking place June 18-21, 2014: ... Research UK Gurdon Institute, for the McEwen Award for ... Yale Stem Cell Center, for the ISSCR-BD Biosciences Outstanding ...
Cached Biology News:Scientists warn: Conservation work in zoos is too random 2Scientists warn: Conservation work in zoos is too random 3The internal clock and feeding rhythm set the pace of the liver 2The International Society for Stem Cell Research announces its 2014 award recipients 2The International Society for Stem Cell Research announces its 2014 award recipients 3